Pressure-regulated valve.



A. T. EDMQNSON.

PRESSURE REGULATED VALVE.

APPLICATION IILED 0GT.11,'1909.

Patented Oct. 18,1910. 7

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A. T. EDMONSON. PRESSURE REGULATED VALVE. APPLIOATION FILED 001211,1909.

973,016, Patented Oct. 18, 1910.

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ALVA THRIFT EDMONSON, OF CHICAGO, ILLINOIS.

PRESSURE-REGULATED VALVE.

Specification of Letters Patent.

Patented Oct. 18, 1910.

Application filed October 11, 1909. Serial No. 522,133.

To all whom it may concern:

Be it known that I, ALVA THRIFT EDMON- SON, a citizen of the UnitedStates of America, residing at Chicago, in the county of Cook and Stateof Illinois, have invented a new and useful Pressure-Regulated Valve, ofwhich the following is a specification,

- reference being had to the accompanying drawings illustrating same.

My invention relates to valves and also to pressure-controllablemechanism, and more in particular to a combination of these mechanismswherein the pressure-controllable mechanism controls or regulates thevalve.

The principal objects of my invention are, to provide improved apparatusof the type above mentioned, wherein any fluid pressure, either liquidor gaseous, may cause the proper control or regulation of the valve; toprovide improved means for automatically cont-rolling the supply ofliquid or gaseous fuel to a burner, such as a burner used to producesteam ina steam generator; and to provide simplicity and eificiency insuch a device.

Other objects will be apparent from the following specification.

In the drawings, illustrating the preferred form of my invention, Figure1 is an elevation of the complete device of the invention; Fig. 2 is aside elevation of Fig. 1; Fig. 3 is a view of the device of theinvention taken the same as Fig. 1, with the cover and other portionsremoved to show the interior construction of the device; Fig. 4 is acrosssectional view of the device of the invention, taken on plane 00 mof Fig. 3, with portions shown in elevation; and Fig. 5 is a plan viewof a portion of the apparatus shown in Fig. 3, showing the detailsthereof.

Like characters refer to like parts in the several figures.

The device of this invention is capable of various uses, one of which isto regulate the supply of fuel, such as gasolene, to a burner for asteam generator, such as the steam generator of a steam automobile, andthus regulate the steam pressure in the steam generator. By this meansthe steam pressure in a steam generator may be automatically keptpractically constant.

It is well known that with the steampressure regulators now in use it isa hard matter to maintain a practically constant steam pressure in anautomobile steam generator. With the device of this invention,

I however, it is possible to easily maintain a uniform steam pressure insuch a steam generator. The advantages of readily accomplishing such aresult are very apparent.

In the drawings, 1 is a casing, preferably a brass casting, and 2 is aremovable cover therefor, the cover being securely bolted to the casingby bolts or screws 3 3. I preferably place a gasket 4 between the cover2 and the casing 1, to makea tight joint therebetween. The casing 1 hasa hollow cylindrical portion 5 thereon, for containing parts of theapparatus. In one end of the portion 5 is screwed a plug 6 preferably asshown, and in the other end of the portion 5 is screwed another plug 7,preferably as shown. The plugs 6 and 7 tightly close the ends of theportion 5. The plug7 is provided with a hole 8 therethrough, the innerend of the hole 8 being beveled preferably as shown at 39 to provide atapered valve seat for the conically-shaped end of a pin 9 carriedwithin the portion 5, the pin 9 and hole 8 providing a valve adapted tobe opened and closed. The other end of the pin 9 is carried within anopening in the plug 6, preferably as shown, a coil spring 10 acting onthe pin 9 through the agency of the adjnstable nuts 11 and tending toseat the pin 9 to close the valve formed by the pin 9 and seat 39 whennot restrained from doing so. I preferably place a cylindrical disk ormember 12 within the opening 13 in the portion 5, to serve as a guidingmember for one end of the pin 9, this member 12 being preferably cutaway as shown at 14c and provided with holes 15 15 therethrough, toprovide a suitable in1et (or outlet) passage to the valve passage 8independently of the opening between the pin 9 and the portion 12, whichlatter opening may be made as Earge or small as desired, even to asliding A hollow, curved, pressure-controllable member 16 is located ina. curved recess 17 member 16 being carried by a hollow bolt 18 whichextends through the wall of the casing 1 preferably as shown in Fig. 4:.The bolt 18 is rigidly held in place by a nut 19, a washer 20 forming atight joint between the casing 1 and the nut 19 around the bolt 18. Themember 16 has one end thereof inserted into a hole 23 extending throughone side of the head 24 of the bolt 18 from the longitudinal passage 21in the in the casing 1, preferably as shown, the

bolt 18, so as to connect the passage 21 with the passage 25 in themember 16, the latter being preferably brazed to the bolt 18 at 22 so asto form a tight joint therebetween. The free end of the member 16 issealed shut by a cap 26 which is preferably brazed thereto.

A lever 27 is fulcrumed at 28 on a bolt 29 which extends through thewall of the casing 1, the end 30 of the lever 27 being acted upon by aprojection 32 of the cap 26, and the end 31 of the lever 27 engaging theadjustable washer 33 which is held in place by the adjustable nuts 11.From Fig. 5 it will be seen that the end 31 of the lever 27 isbifurcated so as to straddle the pin 9. The coil spring 10 acts on thelever 27, through the agency of the nuts 11 and the Washer 33, againstthe pressure of the portion 32 on the end 30 of the lever 27.

The pipe 34 is connected with the curved recess 17 preferably as shownin Figs. 3

and 4. The pipe 34 carries a nut 35, preferably of the type shown inFig. 2, by means of which nut any suitable pipe may be connected withthe pipe 34, in a manner well understood. The exterior end of the plug 7is preferably threaded at 36 so that it may be attached to any suitablepipe. From this construction it will be readily seen that the passagethrough the valve is from the inlet (or outlet) pipe 34, through therecess 17 in the casing 1 to the opening 13 in the portion 5, and thenthrough the holes .15 15 and the cavity 14 to and through the outlet (orinlet) passage 8. Thus it will be readily seen that controlling thelongitudinal movement of the pin 9 with respect to the inner end 39 ofthe hole 8, will consequently control the fluid passage through thevalve and the device of the invention.

The pipe for supplying the pressure-controllable member 16 with fluidpressure for operating the member 16, may be attached to the hollow bolt18 in a manner well understood. This pipe may be connected to anysuitable source of pressure, as, for

example, with a steam generator of an automobile.

The operation of the device is as follows: When there is no fluidpressure in the pressure-controllable member 16 greater than atmosphericpressure, the end 32 of this pressure-controllable member pressesagainst the end 30 of the lever 27, due to the springiness of the member16, and thereby raises the pin 9 from its valve seat 39 and holds it inthe position shown in Fig. 3, against the action of coil spring 10. Inthis position of the pin 9 the valve formed by the pin 9 and seat 39 isfully open. Now as the fluid pressure in the pressure-controllablemember 16 increases, such pressure coming from the opening 21 throughthe bolt 18, the member 16 is extended toward its dotted-line position38 shown in Fig. 3, in a manner well unden stood by those familiar withsuch pressurecontrollable members. As the member 16 approaches theposition 38, the portion 32 recedes from the end 30 of thelever 27 andthereby permits the coil spring 10 to move the valve pin or plug 9toward its seat 39 and thus tend to close the valve. If the member 16 issufficiently extended or expanded by the increased pressure therein, thevalve formed by the pin 9 and seat 39 will be entirely closed by theaction of the spring 10 on the pin 9. Thus it can be readily seen how avariation of pressure in the member 16 controls the valve and therebycontrols the passage 34, 17 13, 8, through the apparatus. By adjustingthe nuts 11 and washer 33 on the pin 9, the valve may be made to open orclose at any desired position of the member 16.

l/Vhen the device of this invention is applied to a steam automobile toregulate the fuel supply to the steam generator, an increase of steampressure over that desired to be maintained to operate the engine, willantomatically reduce the supply of fuel, such as gasolene, to the steamgenerator and thereby keep the steam pressure from becoming stillhigher. If the steam pressure becomes lower than that desired to bemaintained, the supply of fuel to the steam generator will beautomatically increased so as to bring the pressure up to the desiredvalue.

I do not wish to limit this invention to the particular details hereinset forth, nor to any particular materials for the various parts, asvarious modifications may be made therein without departing from thescope of the appended claims.

What I claim as my invention is:

1. A device of the character described comprising a casing and aremovable cover therefor, said casing having a hollow cylindricalportion on one side thereof, screw plugs for the ends of the saidcylindrical portion, one of the said plugs having an openingtherethrough beveled at its inner end to form a valve-plug seat, a pinwithin the said cylindrical portion and extending longitudinallythereof, one end of the said pin being carried withinan opening in oneof the said screw plugs and the other end of the said pin beingconically shaped to provide a suitable valve plug for the said valveplugseat, a guiding disk for the last-mew tioned end of the said pin, thesaid guiding disk having an opening therethrough to provide a fluidpassage to the said valve-plug seat, a suitable opening through the wallof the said casing to the valve, a curved elliptical tube carried withinthe said casing, a hollow bolt attached to the said tube and extendingthrough the wall of the said casing whereby pressure may be applied tothe interior of the said tube, an adjustable nut on the said pin, a coilspring acting between one of the said screw plugs and the adjustable nutand tending to seat the valve plug, and a lever fulcrumed between itsends and connecting the free end of the said tube with the adjustablenut, the said tube normally acting on the said lever against the coilspring to hold the valve plug from its seat, an increase of pressure inthe said tube tending to straighten same and thereby permit the coilspring to operate the valve plug toward its seat for purposessubstantially as described.

2. A device of the character described comprising a casing and aremovable cover therefor, said casing having a chamber on one sidethereof, screw plugs for the said chamber, one of the said plugs havingan opening therethrough beveled at its inner end to form a valve-plugseat, a pin within the said chamber, one end of the said pin beingcarried within an opening in one of the said screw plugs and the otherend of the said pin being conically shaped to provide a suitable valveplug for the said valve-plug seat, a guiding disk for the last-mentionedend of the said pin, the said guiding disk having an openingtherethrough to provide a fluid passage to the said valve-plug seat, a

suitable opening through the wall of the pressure may be applied to theinterior of the said tube, an adjustable nut on the said pin, a coilspring acting between one of the said screw plugs and the adjustable nutand tending to seat the valve plug, and a lever fulcrumed between itsends and connecting the free end of the said tube with the adj ustablenut, the said tube normally acting on the said lever against the coilspring to hold the valve plug from its seat, an increase of pressure inthe said tube tending to straighten same and thereby permit the coilspring to operate the valve plug toward its seat for purposessubstantially as described.

As inventor of the foregoing I hereunto subscribe my name, this 7th dayof October, 5

ALVA THRIFT EDMONSON.

WVitnesses:

S. M. JEFFREY, FREDERICK R. PARKER.

